Stearyltrimethylammonium chloride is an organic molecular entity.
How much products actually contain
No product states its amount yet.
Of the products containing it, 68 list it before the 1% line and 59 after it (usually 1% or less).
Products using this ingredient
12 of 123 confirmed · likeliest to carry enough first · See all 123
BYOURTea Tree Fresh Teen Treatment
MenthologySUPER COOL TREATMENT
PATTERN BeautyPATTERN Beauty Palo Santo Medium Conditioner
FarmstayFarmstay Tamanu Oil Mild Conditioner Hibiscus
SCENEARTHVeggie Protein Treatment
TreecellTreecell Triple Bonding Treatment 250ml
TSUBAKIPremium Volume & Repair Treatment 160g
RooblissExtreme Advanced Essential Hair Pack
PATTERN BeautyPATTERN Beauty Medium Conditioner
Biome ActivateHair Repair 9 Brown Rice Vinegar Scalp & Hair Rinse
Dr.BangGiWonLAB Anti-Hair-Loss Treatment
TSFish Mint Calming Treatment
Definition
Stearyltrimethylammonium chloride is an organic molecular entity.
Source: PubChem
US FDA substance register · UNII CZ70647U92 · registered name TRIMETHYL OCTADECYL AMMONIUM CHLORIDE · single chemical substance
Steartrimonium Chloride is the quaternary ammonium salt that conforms to the formula:
Cosmetic roles
Safety & regulatory references
- Restricted
- South Korea · Taiwan
Source: MFDS (Korea) cosmetic regulatory information
Argentina · Brazil
- Maximum concentration permitted at final product : 0.1%
ASEAN
- Maximum authorised concentration in the finished cosmetic product : 0.1%
China
- Maximum concentration : (a) 0.25%
- (b)
European Union
- Maximum concentration in ready for use preparation : 0.1%
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Restriction V/44 III/286 · SCCS opinion: Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride - For other uses than as a preservative
Source: EU CosIng ingredient list
Reviewed by CIR: Final Report on the Safety Assessment of Cetrimonium Chloride, Cetrimonium Bromide, and Steartrimonium Chloride
Reviewed by CIR: Safety Assessment of Trimoniums as used in Cosmetics
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name ステアルトリモニウムクロリド: 本品は、次の化学式で表される４級アンモニウム塩である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 112-03-8
- EC No.EU chemical inventory number
- 203-929-1
- DTXSIDUS EPA chemical ID
- DTXSID1026902
- DTXCIDUS EPA compound ID
- DTXCID206902
- IUPAC
- N,N,N-Trimethyloctadecan-1-aminium chloride
- Molecular formula
- C21H46ClN
- Molecular weight
- 348.06 g/mol
Measured properties
- Appearance
- CBI, Large Crystals
- Melting/freezing point
- 220 ℃
- Water solubility
- 1.759 ㎎/ℓ
- n-Octanol/water partition coefficient (Kow)
- 4.17
- Molecular weight
- 348.13
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 89 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Stabilizing agent48
- Emulsifier29
- Preservative3
- Softener and conditioner3
- Anti-static agent3
- Surfactant (surface active agent)2
- Intermediate1
Source: US EPA CompTox dashboard
Related literature
- Final Report on the Safety Assessment of Cetrimonium Chloride, Cetrimonium Bromide, and Steartrimonium Chloride · 1997
- Dermal absorption of steartrimonium chloride (STC) for risk assessment as non-preservative cosmetics ingredient. · 2026
- Microfluidics-based skin irritation test using in vitro 3D angiogenesis platform · 2019
Linked databases 21
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2 3
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata